EP1373812B1 - Vorrichtung und verfahren zur steuerung eines kaltluftkreislaufs in einer kühlvorrichtung - Google Patents

Vorrichtung und verfahren zur steuerung eines kaltluftkreislaufs in einer kühlvorrichtung Download PDF

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Publication number
EP1373812B1
EP1373812B1 EP02718648A EP02718648A EP1373812B1 EP 1373812 B1 EP1373812 B1 EP 1373812B1 EP 02718648 A EP02718648 A EP 02718648A EP 02718648 A EP02718648 A EP 02718648A EP 1373812 B1 EP1373812 B1 EP 1373812B1
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EP
European Patent Office
Prior art keywords
cold air
storage space
circulation
flow passage
refrigerator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02718648A
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English (en)
French (fr)
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EP1373812A4 (de
EP1373812A1 (de
Inventor
Jun-Chul Shin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR10-2001-0018488A external-priority patent/KR100389424B1/ko
Priority claimed from KR10-2001-0018486A external-priority patent/KR100389423B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1373812A1 publication Critical patent/EP1373812A1/de
Publication of EP1373812A4 publication Critical patent/EP1373812A4/de
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Publication of EP1373812B1 publication Critical patent/EP1373812B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F25D2317/0672—Outlet ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

Definitions

  • the present invention relates to a refrigerator according to the preamble of claims 1 and 8 and a method according to the preamble of claims 7 and 15.
  • FIG. 6 shows a sectional view of a refrigerator which employs a conventional apparatus for controlling cold air circulation therein.
  • a freezing chamber 3 and a refrigerating chamber 5 which are storage spaces formed in the interior of a main body 1 of the refrigerator, are separated from each other by a barrier 4.
  • a plurality of shelves 5' are installed at different levels in the refrigerating chamber 5 so that stored goods can be put on the shelves.
  • a vegetable storage chamber 6 for separately storing fruits or vegetables therein is formed at a lowermost portion of the refrigerating chamber 5.
  • the vegetable storage chamber 6 is constructed in the form of a drawer.
  • the freezing chamber 3 and the refrigerating chamber 5 are opened and closed by doors 7, 7', respectively, so as to communicate with the exterior thereof. Inner surfaces of the doors 7, 7' are provided with door baskets 8 for accommodating stored goods.
  • an evaporator 9 which is one of constituent components of a heat exchange cycle for generating cold air to circulate in the refrigerator, is installed in the rear of the freezing chamber 3.
  • a space in which the evaporator 9 is installed is shielded by a shroud 10.
  • a fan grill 12 is mounted between the shroud 10 and the freezing chamber 3.
  • a blower fan 14 is installed above the evaporator 9. The blower fan 14 causes the cold air to flow into a space between the shroud 10 and the fan grill 12.
  • the fan grill 12 is also provided with a discharge port (not shown) through which the cold air is discharged to the freezing chamber 3.
  • a refrigerating chamber duct 16 is installed in the rear of the refrigerating chamber 5 such that it extends lengthily from an upper end of the refrigerating chamber to a lower end thereof.
  • the refrigerating chamber duct 16 is formed with cold air discharge ports 17 through which the cold air is discharged to spaces partitioned by the shelves 5'.
  • a freezing chamber return flow passage 18 is formed such that the freezing chamber 3 communicates with the space with the evaporator 9 installed therein through a top surface of the barrier 4 corresponding to a floor of the freezing chamber 3.
  • the cold air which has circulated in the freezing chamber 3 is returned to the evaporator 9 through the freezing chamber return flow passage 18.
  • a refrigerating chamber return flow passage 19 is formed such that the refrigerating chamber 5 communicates with the space with the evaporator 9 installed therein through a bottom surface of the barrier 4 corresponding to a ceiling of the refrigerating chamber 5.
  • the cold air supplied to the refrigerating chamber through the refrigerating chamber duct 16 is relatively less influenced by the blower fan 14. Further, the cold air is relatively less delivered to the door baskets 8 spaced far apart from the discharge port 17. Thus, the temperatures of the door baskets 8 are relatively higher than those in the shelves 5' located at the same levels as the baskets 8. Such a phenomenon becomes severest at a position corresponding to the position of the vegetable storage chamber 6, which is a position of the lowermost one of the door baskets 8.
  • an actual temperature of the vegetable storage chamber 6 is relatively higher than an optimum temperature therein. This is because there is a relatively little amount of cold air which flows toward a lower portion of the refrigerating chamber duct 16 and is then delivered to the vegetable storage chamber 6. That is, according to the prior art, the cold air is not uniformly delivered to the entire refrigerating chamber 5. Thus, it is likely that the temperature of a lower portion of the refrigerating chamber 5 becomes relatively higher, whereas the temperature of an upper portion of the refrigerating chamber 5 becomes relatively lower.
  • US-A-6138 460 discloses a temperature control apparatus for a refrigerator and a control method.
  • An air circulation fan is mounted in addition to a refrigerating fan into the refrigerating compartment of a refrigerator thus obtaining a more uniform cooling effect of the refrigerating chamber.
  • the two fans are placed relatively close to each other in the same air duct and thus provide an air flow in the same direction.
  • An object of the present invention is to minimize temperature deviation in a refrigerating chamber of a refrigerator.
  • Another object of the present invention is to precisely maintain the temperature of a vegetable storage chamber installed at a lower portion of the refrigerating chamber of the refrigerator.
  • a further object of the present invention is to minimize heat loss of cold air which is returned from the refrigerating chamber to an evaporator.
  • a refrigerator having the features of claim 1 and a method having the features of claim 7.
  • a refrigerator having the features of claim 8 and a method having the features of claim 15.
  • the circulation fan may be installed at the outlet or inlet of the circulation duct.
  • the cold air circulation means may be installed within the cold air supply flow passage, or at a side wall of the storage space which is separate from the cold air supply flow passage.
  • the outlet of the circulation duct is preferably installed at the cold air discharge port of the cold air supply flow passage, and the inlet of the circulation duct is preferably positioned at a relatively lower portion of the storage space.
  • the inlet of the circulation duct is preferably configured to communicate with a lower portion of the vegetable storage chamber which is separately formed at the lower portion of the storage space.
  • FIGS. 1 and 2 one embodiment of the present invention will be described.
  • the interior of a main body 30 of a refrigerator which is comprised of walls having insulation layers, is provided with a freezing chamber 33 and a refrigerating chamber 35 as storage spaces.
  • the freezing chamber 33 and the refrigerating chamber 35 are separated by a barrier 34 so that the freezing chamber 33 and the refrigerating chamber 35 are disposed at upper and lower portions of the main body, respectively.
  • a plurality of shelves 35' are installed in the refrigerating chamber 35 so that stored goods can be put thereon.
  • the freezing chamber 33 and the refrigerating chamber 35 selectively communicate with the outside environment of the refrigerator by doors 37, 37', respectively.
  • Inner surfaces of the doors 37, 37' are provided with a plurality of door baskets 38 for accommodating stored goods.
  • an evaporator 39 as a heat exchanger, which constitutes a refrigeration cycle, is installed in the rear of the freezing chamber 33 in order to generate cold air to circulate in the refrigerator.
  • a space between the evaporator 39 and the freezing chamber 33 is partitioned by a shroud 40 and a fan grill 42.
  • a space between the shroud 40 and the grill fan 42 serves to distribute the cold air to the freezing chamber 33 and the refrigerating chamber 35.
  • the grill fan 42 is formed with a plurality of discharge ports (not shown) through which the cold air is supplied to the freezing chamber 33.
  • a blower fan 44 which provides driving force for causing the cold air to flow in the refrigerator is installed above the evaporator 39.
  • a refrigerating chamber duct 46 is installed in the rear of the refrigerating chamber 35.
  • the refrigerating chamber duct 46 extends lengthily from an upper end of the refrigerating chamber to a lower end thereof, and is formed with cold air discharge ports 47 to correspond to the respective shelves 35'.
  • the cold air is delivered as far as the vegetable storage chamber 36 through the refrigerating chamber duct 46.
  • a freezing chamber return flow passage 48 is formed through the interior of the barrier 34. Furthermore, in order to return the cold air, which has circulated in the refrigerating chamber 35, to the evaporator 39, a refrigerating chamber return flow passage 49 is formed through the interior of the barrier 34. An inlet of the refrigerating chamber return flow passage 49 is formed on a bottom surface of the barrier 34 which becomes a ceiling of the refrigerating chamber 35.
  • a circulation duct 50 is provided for further facilitating the cold air circulation in the lower portion of the refrigerating chamber 35.
  • the circulation duct 50 is installed in the refrigerating chamber duct 46..in this embodiment, it is not necessarily limited thereto.
  • the circulation duct 50 may be installed at a location, such as both side walls of the refrigerating chamber 35, separate from the refrigerating chamber duct 46.
  • An inlet 51 of the circulation duct 50 is disposed at a rearward lower end of the vegetable storage chamber 36 to communicate with a lower portion of the vegetable storage chamber 36.
  • An outlet 52 of the circulation duct 50 is disposed to be open to above a shelf 35' which is placed at a top end of the vegetable storage chamber 36. At this time, the outlet 52 is installed to penetrate through a portion of a front surface of the refrigerating chamber duct 46. The outlet 52 is also formed to communicate with the refrigerating chamber 35 via the cold air discharge port 47.
  • the outlet 52 of the circulation duct 50 is provided with a circulation fan 54 for circulating the cold air through the circulation duct 50.
  • the circulation fan 54 causes the cold air, which has been sucked through the inlet 51, to be discharged into the refrigerating chamber 35 through the outlet 52.
  • temperature sensors (not shown) be mounted so as to sense the temperatures within the refrigerating chamber 35, the vegetable storage chamber 36 and the like. Information on the temperature sensed by the temperature sensors are transmitted to a microcomputer (not shown) and then used for determination of the driving of the refrigeration cycle (i.e., driving of the blower fan 44) and the driving of the circulation fan 54.
  • the microcomputer determines the driving of the blower fan 44 and the circulation fan 54 based on predetermined data and the information on the temperature sensed by the temperature sensors.
  • the cold air generated by the evaporator 39 circulates in the refrigerator by means of the blower fan 44. That is, the cold air is delivered to the space between the shroud 40 and the grill fan 42 by the driving of the blower fan 44, and then, a portion of the cold air is delivered to the freezing chamber 33 through the discharge ports of the grill fan 42. The remainder of the cold air flows downward in the space between the shroud 40 and the grill fan 42, passes through the barrier 34 and is supplied to the refrigerating chamber duct 46.
  • the cold air delivered to the refrigerating chamber duct 46 flows downward along the refrigerating chamber duct 46 and is simultaneously discharged through the respective discharge ports 47 to above the respective shelves 35' in the refrigerating chamber 35.
  • the discharged cold air cools the stored goods within the refrigerating chamber 35.
  • the cold air which has been delivered to the freezing chamber 33 and the refrigerating chamber 35 is returned to the evaporator 39 -through the freezing chamber return flow passage 48 and the refrigerating chamber return flow passage 49, respectively.
  • Heat exchange occurs between the cold air and the refrigerant in the evaporator, and the cold air then repeatedly circulates in the refrigerator.
  • the circulation fan 54 sucks the cold air on a side of the lower portion of the refrigerating chamber 35 and discharges it upward. It is preferred that the circulation fan 54 be driven when the blower fan 44 is not operated. This is to prevent the vegetable storage chamber 36 from being cooled too excessively due to continuous supply of the cold air, which is supplied from the evaporator 39 by the operation of the blower fan 44, to around the vegetable storage chamber 36.
  • the operation of the heat exchange cycle is stopped and the operation of the blower fan 44 is also stopped. It is preferable to operate the circulation fan 54 in this condition.
  • the relatively low temperature cold air can be delivered particularly to around the vegetable storage chamber 36 as well as the door baskets 38' of the door 37'. Further, the relatively low temperature cold air can also be delivered to a lowermost door basket 38' of the door 37' which otherwise might have a highest temperature. Thus, the lowermost basket 38' can be set at a desired temperature.
  • Such an operation of the circulation fan 54 can be controlled based on sensed signals detected by a temperature sensor additionally installed in the vegetable storage chamber 36. That is, when the temperature of the vegetable storage chamber 36 reaches a predetermined temperature, the circulation fan 54 is stopped in response to the sensed signals detected by the temperature sensor.
  • FIGS.. 3 and 4 Another embodiment of the present invention is shown in FIGS.. 3 and 4 .
  • FIGS.. 3 and 4 When describing the constitution of this embodiment, only elements different from those of the previous embodiment shown in FIG. 1 will be described and like or similar elements are denoted by the same reference numerals as FIG. 1 .
  • the present embodiment employs a circulation duct 150.
  • the circulation duct 150 of the present embodiment is not also necessarily installed in the refrigerating chamber duct 46 and may be installed at a location, such as both the side walls of the refrigerating chamber 35, separate from the refrigerating chamber duct 46.
  • a circulation fan 152 is installed at an inlet 151 which is disposed at a lower end of the circulation duct 150.
  • the inlet 151 of the circulation duct 150 is fitted into and installed at a circulation inlet 47' of the refrigerating chamber duct 46.
  • the circulation fan 152 is positioned inside the circulation inlet 47' so that the cold air within the refrigerating chamber 35 can be sucked thereinto.
  • the circulation duct 150 is installed in the refrigerating chamber duct 46 to extend lengthily in an up and down direction and is provided with respective outlets 154 at locations corresponding to the discharge ports 47 formed in the refrigerating chamber duct 46.
  • the outlets 154 are formed at the locations corresponding to the discharge ports 47 so that the cold air flowing through the circulation duct 150 can be supplied to the refrigerating chamber 35 through the discharge ports 47. At this time, it is preferable to make cross-sectional areas of the outlets 154 smaller than those of the discharge ports 47.
  • each outlet 154 can be installed to be fitted into a portion of each discharge port 47, it is not necessarily limited thereto.
  • the outlets 154 may be arranged to be disposed in the vicinity of the discharge ports 47 in the same way as the illustrated embodiment.
  • the present embodiment is the same as the previous embodiment in that the cold air generated by the evaporator 39 is delivered to the freezing chamber 33 and the refrigerating chamber 35 by means of the blower fan 44, and in that the cold air delivered to the freezing chamber 33 and the refrigerating chamber 35 is returned through the respective freezing chamber return flow passage 48 and refrigerating chamber return flow passage 49 to the evaporator 39 where the heat exchange occurs between the cold air and the refrigerant in the evaporator and then repeatedly circulates in the refrigerator.
  • the circulation fan 152 sucks the cold air on a side of the interior of the refrigerating chamber 35 and then discharges it to the other side. It is preferable to drive the circulation fan 152 when the blower fan 44 is not operated. Alternatively, the circulation fan 152 may be driven together with the blower fan 44 so that the relatively low temperature cold air cannot be returned to the evaporator 39.
  • the operation of the heat exchange cycle is stopped and the operation of the blower fan 44 is also stopped. It is preferable to operate the circulation fan 152 in this condition.
  • the temperatures in the vicinity of the lower portion and the vegetable storage chamber 36 of the refrigerating chamber 35 are generally higher than the predetermined temperature. This is because the lower portion and the vegetable storage chamber 36 of the refrigerating chamber 35 are portions corresponding to a distal end of the refrigerating chamber duct 46.
  • the circulation fan 152 when the circulation fan 152 is operated, the cold air at the lower portion of the refrigerating chamber 35 is sucked into the circulation duct 150 through the circulation inlet 47'. Then, the sucked cold air is delivered to an upper portion of the circulation duct 150 and discharged to a relatively upper, portion of the refrigerating chamber 35 through the respective outlets 154.
  • the cold pair around the vegetable storage chamber 36 is sucked into the circulation duct 150 by means of the driving of the circulation fan 152 and the cold air at the upper portion of the refrigerating chamber 35 is simultaneously moved downward, so that the temperature of the entire refrigerating chamber 35 can be kept to be uniform.
  • the temperature of the refrigerating chamber 35 according to the present invention is kept to be relatively uniform as time passes.
  • the temperature of the compressor is plotted using a dotted line.
  • the higher temperature of the compressor means that the refrigeration cycle is running.
  • the temperature of the refrigerating chamber depending on the temperature of the compressor is plotted using a one-dotted chain line in case of the prior art and using a solid line in case of the present embodiment.
  • the temperature deviation with the elapse of time is relatively small and thus the refrigerating chamber is kept at a substantially uniform temperature.
  • the temperature of the entire refrigerating chamber can be kept to be uniform, and particularly, the vegetable storage chamber disposed at the lowermost portion of the refrigerating chamber and the lowermost door basket of the door can be maintained at a desired temperature.
  • the temperature of the entire refrigerating chamber can be kept to be uniform, the relatively low temperature cold air is prevented from being delivered to and heat-exchanged with the evaporator.
  • the efficiency of the refrigerator can be improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (15)

  1. Kühlvorrichtung, die mit einer Vorrichtung zur Steuerung eines Kaltluftkreislaufs bereitgestellt wird, aufweisend:
    ein Kaltluftzufuhrmittel zur Zufuhr von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, zu einem Aufbewahrungsraum (35) mittels eines Gebläses (44);
    einen Strömungskanal (46) zur Kaltluftzufuhr mit einer Vielzahl von Austrittsöffnungen (47) für Kaltluft, die mit entsprechenden Bereichen des Aufbewahrungsraums (35) korrespondieren, so dass die vom Kaltluftzufuhrmittel zugeführte Kaltluft dem Aufbewahrungsraum (35) derart zugeführt wird, dass die dem Strömungskanal (46) zur Kaltluftzufuhr zugeführte Kaltluft entlang dem Strömungskanal (46) nach unten strömt und gleichzeitig durch die entsprechenden Austrittsöffnungen (47) ausgelassen wird;
    einen Kaltluftrückstromkanal (49) zur Rückführung der Kaltluft, die im Aufbewahrungsraum (35) zirkulierte, zum Wärmetauscher (39) mittels der Saugkraft des Gebläses (44);
    einen Mikrocomputer; und
    ein Mittel zur Kaltluftzirkulation, das bewirkt, dass die Kaltluft, die dem Aufbewahrungsraum (35) aus dem Strömungskanal (46) zur Kaltluftzufuhr zugeführt wurde, von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben strömt,
    wobei der Mikrocomputer das Kaltluftzufuhrmittel und das Mittel zur Kaltluftzirkulation aufgrund einer Information über die Temperatur des Aufbewahrungsraums (35) steuert, so dass die Kaltluft in der Kühlvorrichtung umgewälzt wird,
    dadurch gekennzeichnet, dass das Mittel zur Kaltluftzirkulation ein Umluftgebläse (152) zum Ansaugen der Kaltluft im unteren Bereich des Aufbewahrungsraums (35) und eine Zirkulationsleitung (150) aufweist, wobei ein Einlass (151) der Zirkulationsleitung (150) im unteren Bereich des Aufbewahrungsraums (35) angeordnet ist und ein Auslass (154) der Zirkulationsleitung (150) im oberen Bereich des Aufbewahrungsraums (35) angeordnet ist, so dass die vom Umluftgebläse (152) angesaugte Kaltluft wieder dem Aufbewahrungsraum zugeführt wird,
    wobei die Kaltluft um eine im unteren Bereich des Aufbewahrungsraums (35) angeordnete Aufbewahrungskammer (36) für Gemüse herum mittels des Antreibens des Umluftgebläses (152) in die Zirkulationsleitung (150) gesaugt wird und die Kaltluft im oberen Bereich des Aufbewahrungsraums (35) gleichzeitig nach unten bewegt wird.
  2. Kühlvorrichtung nach Anspruch 1, wobei das Umluftgebläse (152) am Einlass (151) der Zirkulationsleitung (150) angeordnet ist.
  3. Kühlvorrichtung nach Anspruch 1, wobei das Mittel zur Kaltluftzirkulation im Strömungskanal (46) zur Kaltluftzufuhr angeordnet ist.
  4. Kühlvorrichtung nach Anspruch 1, wobei das Mittel zur Kaltluftzirkulation an einer Seitenwand des Aufbewahrungsraums (35) angeordnet ist, die vom Strömungskanal (46) zur Kaltluftzufuhr getrennt ist.
  5. Kühlvorrichtung nach Anspruch 1, wobei der Auslass (154) der Zirkulationsleitung (50) an der Austrittsöffnung (47) für Kaltluft des Strömungskanals (46) zur Kaltluftzufuhr ausgebildet ist.
  6. Kühlvorrichtung nach Anspruch 5, wobei der Einlass (151) der Zirkulationsleitung (150) in einem unteren Bereich des Aufbewahrungsraums (35) angeordnet ist.
  7. Verfahren zur Steuerung eines Kaltluftkreislaufs in einer Kühlvorrichtung, aufweisend ein Gebläse (44) zur Umwälzung von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, in einem Aufbewahrungsraum (35) und ein Umluftgebläse (54, 154) zur Umwälzung der Kaltluft von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben, wobei das Verfahren die folgenden Schritte aufweist:
    Zuführung von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, zu einem Aufbewahrungsraum (35) durch ein Kaltluftzufuhrmittel mittels eines Gebläses (44);
    Bereitstellung eines Strömungskanals (46) zur Kaltluftzufuhr mit einer Vielzahl von Austrittsöffnungen (47) für Kaltluft, die mit entsprechenden Bereichen des Aufbewahrungsraums (35) korrespondieren, so dass die vom Kaltluftzufuhrmittel zugeführte Kaltluft dem Aufbewahrungsraum (35) derart zugeführt wird, dass die dem Strömungskanal (46) zur Kaltluftzufuhr zugeführte Kaltluft entlang dem Strömungskanal (46) nach unten strömt und gleichzeitig durch die entsprechenden Austrittsöffnungen (47) ausgelassen wird;
    Rückführung der Kaltluft, die im Aufbewahrungsraum (35) zirkulierte, zum Wärmetauscher (39) durch einen Kaltluftrückstromkanal (49) mittels der Saugkraft des Gebläses (42);
    Bewirken, dass die Kaltluft, die dem Aufbewahrungsraum (35) vom Strömungskanal (46) zur Kaltluftzufuhr zugeführt wurde, von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben strömt, durch ein Mittel zur Kaltluftzirkulation; und
    Steuerung des Kaltluftzufuhrmittels und des Mittels zur Kaltluftzirkulation durch einen Mikrocomputer aufgrund einer Information über die Temperatur des Aufbewahrungsraums (35), so dass die Kaltluft in der Kühlvorrichtung umgewälzt wird,
    dadurch gekennzeichnet, dass das Mittel zur Kaltluftzirkulation ein Umluftgebläse (54) zum Ansaugen der Kaltluft im unteren Bereich des Aufbewahrungsraums (35) und eine Zirkulationsleitung (50) aufweist, wobei ein Einlass (51) der Zirkulationsleitung (50) im unteren Bereich des Aufbewahrungsraums (35) angeordnet ist und ein Auslass (52) der Zirkulationsleitung (50) im oberen Bereich des Aufbewahrungsraums (35) angeordnet ist, so dass die vom Umluftgebläse (54) angesaugte Kaltluft wieder dem Aufbewahrungsraum zugeführt wird,
    wobei die Kaltluft um eine im unteren Bereich des Aufbewahrungsraums (35) angeordnete Aufbewahrungskammer (36) für Gemüse herum mittels des Antreibens des Umluftgebläses (152) in die Zirkulationsleitung (150) gesaugt wird und die Kaltluft im oberen Bereich des Aufbewahrungsraums (35) gleichzeitig nach unten bewegt wird.
  8. Kühlvorrichtung, die mit einer Vorrichtung zur Steuerung eines Kaltluftkreislaufs bereitgestellt wird, aufweisend:
    ein Kaltluftzufuhrmittel zur Zufuhr von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, zu einem Aufbewahrungsraum (35) mittels eines Gebläses (44);
    einen Strömungskanal (46) zur Kaltluftzufuhr mit einer Vielzahl von Austrittsöffnungen (47) für Kaltluft, die mit entsprechenden Bereichen des Aufbewahrungsraums (35) korrespondieren, so dass die vom Kaltluftzufuhrmittel zugeführte Kaltluft dem Aufbewahrungsraum (35) derart zugeführt wird, dass die dem Strömungskanal (46) zur Kaltluftzufuhr zugeführte Kaltluft entlang dem Strömungskanal (46) nach unten strömt und gleichzeitig durch die entsprechenden Austrittsöffnungen (47) ausgelassen wird;
    einen Kaltluftrückstromkanal (49) zur Rückführung der Kaltluft, die im Aufbewahrungsraum (35) zirkulierte, zum Wärmetauscher (39) mittels der Saugkraft des Gebläses (44);
    einen Mikrocomputer; und
    ein Mittel zur Kaltluftzirkulation, das bewirkt, dass die Kaltluft, die dem Aufbewahrungsraum (35) aus dem Strömungskanal (46) zur Kaltluftzufuhr zugeführt wurde, von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben strömt,
    wobei der Mikrocomputer das Kaltluftzufuhrmittel und das Mittel zur Kaltluftzirkulation aufgrund einer Information über die Temperatur des Aufbewahrungsraums (35) steuert, so dass die Kaltluft in der Kühlvorrichtung umgewälzt wird,
    dadurch gekennzeichnet, dass das Mittel zur Kaltluftzirkulation ein Umluftgebläse (54) zum Ansaugen der Kaltluft im unteren Bereich des Aufbewahrungsraums (35) und eine Zirkulationsleitung (50) aufweist, wobei ein Einlass (51) der Zirkulationsleitung (50) im unteren Bereich des Aufbewahrungsraums (35) angeordnet ist und ein Auslass (52) der Zirkulationsleitung (50) im oberen Bereich des Aufbewahrungsraums (35) angeordnet ist, so dass die vom Umluftgebläse (54) angesaugte Kaltluft wieder dem Aufbewahrungsraum zugeführt wird,
    wobei die aus dem oberen Bereich des Aufbewahrungsraums (35) zugeführte Kaltluft um eine im unteren Bereich des Aufbewahrungsraums (35) angeordnete Aufbewahrungskammer (36) für Gemüse herum strömt und in den Einlass (51) der Zirkulationsleitung (50) gesaugt wird.
  9. Kühlvorrichtung nach Anspruch 8, wobei das Umluftgebläse (54) am Auslass (52) der Zirkulationsleitung (50) angeordnet ist.
  10. Kühlvorrichtung nach Anspruch 8, wobei das Mittel zur Kaltluftzirkulation im Strömungskanal (46) zur Kaltluftzufuhr angeordnet ist.
  11. Kühlvorrichtung nach Anspruch 8, wobei das Mittel zur Kaltluftzirkulation an einer Seitenwand des Aufbewahrungsraums (35) angeordnet ist, die vom Strömungskanal (46) zur Kaltluftzufuhr getrennt ist.
  12. Kühlvorrichtung nach Anspruch 8, wobei der Auslass (52) der Zirkulationsleitung (50) an der Austrittsöffnung (47) für Kaltluft des Strömungskanals (46) zur Kaltluftzufuhr ausgebildet ist.
  13. Kühlvorrichtung nach Anspruch 12, wobei der Einlass (51) der Zirkulationsleitung (50) in einem unteren Bereich des Aufbewahrungsraums (35) angeordnet ist.
  14. Kühlvorrichtung nach Anspruch 13, wobei der Einlass (51) der Zirkulationsleitung (50) ausgebildet ist, mit einem unteren Bereich der Aufbewahrungskammer für Gemüse, die im unteren Bereich des Aufbewahrungsraums (35) getrennt ausgebildet ist, in Verbindung zu stehen.
  15. Verfahren zur Steuerung eines Kaltluftkreislaufs in einer Kühlvorrichtung, aufweisend ein Gebläse (42) zur Umwälzung von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, in einem Aufbewahrungsraum (35) und ein Umluftgebläse (54, 154) zur Umwälzung der Kaltluft von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben, wobei das Verfahren die folgenden Schritte aufweist:
    Zuführung von Kaltluft, die von einem Wärmetauscher (39) erzeugt wurde, zu einem Aufbewahrungsraum (35) durch ein Kaltluftzufuhrmittel mittels eines Gebläses (44);
    Bereitstellung eines Strömungskanals (46) zur Kaltluftzufuhr (46) mit einer Vielzahl von Austrittsöffnungen (47) für Kaltluft, die mit entsprechenden Bereichen des Aufbewahrungsraums (35) korrespondieren, so dass die vom Kaltluftzufuhrmittel zugeführte Kaltluft dem Aufbewahrungsraum (35) derart zugeführt wird, dass die dem Strömungskanal (46) zur Kaltluftzufuhr zugeführte Kaltluft entlang dem Strömungskanal (46) nach unten strömt und gleichzeitig durch die jeweiligen Austrittsöffnungen (47) ausgelassen wird;
    Rückführung der Kaltluft, die im Aufbewahrungsraum (35) zirkulierte, zum Wärmetauscher (39) durch den Kaltluftrückstromkanal (49) mittels der Saugkraft des Gebläses (44);
    Bewirken, dass die Kaltluft, die dem Aufbewahrungsraum (35) vom Strömungskanal (46) zur Kaltluftzufuhr zugeführt wurde, von einem unteren Bereich des Aufbewahrungsraums (35) zu einem oberen Bereich desselben strömt, durch ein Mittel zur Kaltluftzirkulation; und
    Steuerung des Kaltluftzufuhrmittels und des Mittels zur Kaltluftzirkulation durch einen Mikrocomputer aufgrund einer Information über die Temperatur des Aufbewahrungsraums (35) so dass die Kaltluft in der Kühlvorrichtung umgewälzt wird,
    dadurch gekennzeichnet, dass das Mittel zur Kaltluftzirkulation ein Umluftgebläse (54) zum Ansaugen der Kaltluft im unteren Bereich des Aufbewahrungsraums (35) und eine Zirkulationsleitung (50) aufweist, wobei ein Einlass (51) der Zirkulationsleitung (50) im unteren Bereich des Aufbewahrungsraums (35) angeordnet ist und ein Auslass (52) der Zirkulationsleitung (50) im oberen Bereich des Aufbewahrungsraums (35) angeordnet ist, so dass die vom Umluftgebläse (54) angesaugte Kaltluft wieder dem Aufbewahrungsraum zugeführt wird,
    wobei die aus dem oberen Bereich des Aufbewahrungsraums (35) zugeführte Kaltluft um eine im unteren Bereich des Aufbewahrungsraums (35) angeordnete Aufbewahrungskammer (36) für Gemüse herum strömt und in den Einlass (51) der Zirkulationsleitung (50) gesaugt wird.
EP02718648A 2001-04-07 2002-04-03 Vorrichtung und verfahren zur steuerung eines kaltluftkreislaufs in einer kühlvorrichtung Expired - Lifetime EP1373812B1 (de)

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KR10-2001-0018488A KR100389424B1 (ko) 2001-04-07 2001-04-07 냉장고의 냉기순환구조
KR2001018488 2001-04-07
KR2001018486 2001-04-07
KR10-2001-0018486A KR100389423B1 (ko) 2001-04-07 2001-04-07 냉장고의 냉기순환구조 및 그 제어방법
PCT/KR2002/000589 WO2002081987A1 (en) 2001-04-07 2002-04-03 Apparatus and method for controlling cold air circulation in refrigerator

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EP1373812A4 (de) 2005-10-12
JP2004532964A (ja) 2004-10-28
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